Finding the Third Proportional to 355.50 and 435.50
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Solution
The third proportional to 355.50 and 435.50 is: 533.50
Step by Step Solution
- Step 1: Write the proportion equation
355.50 : 435.50 = 435.50 : x - Step 2: Convert to fraction form
355.50/435.50 = 435.50/x - Step 3: Cross multiply
355.50x = 435.50 × 435.50 - Step 4: Simplify right side
355.50x = 189,660.25 - Step 5: Solve for x
x = 189,660.25/355.50 - Step 6: Final answer
x = 533.50
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Why These Related Problems?
These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.